Friedrich (Fritz) Christoph Mühlberg (19 April 1840 in Aarau – 25 May 1915) was a Swiss geologist.

Mühlberg went to school in Aarau from 1859 and studied botany, geology and chemistry at the Polytechnic School in Zurich and got his diploma in Chemistry in 1861.

In 1888 he received an honorary degree of the University of Basel.

He also dealt with hydrogeology and the geology of the Quaternary (ice ages), and was a defender of nature conservation.

[2] In 1890,he was honoured by botanist Feer who published a monotypic genus of flowering plants from the North Caucus in the family Campanulaceae, as Muehlbergella.